Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature

Copolyurea networks (co-UNs) were synthesized via crosslinking polymerization of a mixture of tetrakis(4-aminophenyl)methane (TAPM) and melamine with hexamethylene diisocyanate (HDI) using the organic sol-gel polymerization method. The subsequent thermal treatment of between 200 and 400 °C induced t...

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Autores principales:	Junsik Nam, Eunkyung Jeon, Su-Young Moon, Ji-Woong Park
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	urea network polymer copolymer porous polymer carbon dioxide adsorbent carbon dioxide selectivity Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/6baa037074d44c79890bbf6201e90122
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spelling	oai:doaj.org-article:6baa037074d44c79890bbf6201e901222021-11-25T18:49:16ZRearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature10.3390/polym132240042073-4360https://doaj.org/article/6baa037074d44c79890bbf6201e901222021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/22/4004https://doaj.org/toc/2073-4360Copolyurea networks (co-UNs) were synthesized via crosslinking polymerization of a mixture of tetrakis(4-aminophenyl)methane (TAPM) and melamine with hexamethylene diisocyanate (HDI) using the organic sol-gel polymerization method. The subsequent thermal treatment of between 200 and 400 °C induced the sintering of the powdery polyurea networks to form porous frameworks via urea bond rearrangement and the removal of volatile hexamethylene moieties. Incorporating melamine into the networks resulted in a higher nitrogen content and micropore ratio, whereas the overall porosity decreased with the melamine composition. The rearranged network composed of the tetraamine/melamine units in an 80:20 ratio showed the highest carbon dioxide adsorption quantity at room temperature. The results show that optimizing the chemical structure and porosity of polyurea-based networks can lead to carbon dioxide adsorbents working at elevated temperatures.Junsik NamEunkyung JeonSu-Young MoonJi-Woong ParkMDPI AGarticleurea network polymercopolymerporous polymercarbon dioxide adsorbentcarbon dioxide selectivityOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 4004, p 4004 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	urea network polymer copolymer porous polymer carbon dioxide adsorbent carbon dioxide selectivity Organic chemistry QD241-441
spellingShingle	urea network polymer copolymer porous polymer carbon dioxide adsorbent carbon dioxide selectivity Organic chemistry QD241-441 Junsik Nam Eunkyung Jeon Su-Young Moon Ji-Woong Park Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
description	Copolyurea networks (co-UNs) were synthesized via crosslinking polymerization of a mixture of tetrakis(4-aminophenyl)methane (TAPM) and melamine with hexamethylene diisocyanate (HDI) using the organic sol-gel polymerization method. The subsequent thermal treatment of between 200 and 400 °C induced the sintering of the powdery polyurea networks to form porous frameworks via urea bond rearrangement and the removal of volatile hexamethylene moieties. Incorporating melamine into the networks resulted in a higher nitrogen content and micropore ratio, whereas the overall porosity decreased with the melamine composition. The rearranged network composed of the tetraamine/melamine units in an 80:20 ratio showed the highest carbon dioxide adsorption quantity at room temperature. The results show that optimizing the chemical structure and porosity of polyurea-based networks can lead to carbon dioxide adsorbents working at elevated temperatures.
format	article
author	Junsik Nam Eunkyung Jeon Su-Young Moon Ji-Woong Park
author_facet	Junsik Nam Eunkyung Jeon Su-Young Moon Ji-Woong Park
author_sort	Junsik Nam
title	Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
title_short	Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
title_full	Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
title_fullStr	Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
title_full_unstemmed	Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature
title_sort	rearranged copolyurea networks for selective carbon dioxide adsorption at room temperature
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/6baa037074d44c79890bbf6201e90122
work_keys_str_mv	AT junsiknam rearrangedcopolyureanetworksforselectivecarbondioxideadsorptionatroomtemperature AT eunkyungjeon rearrangedcopolyureanetworksforselectivecarbondioxideadsorptionatroomtemperature AT suyoungmoon rearrangedcopolyureanetworksforselectivecarbondioxideadsorptionatroomtemperature AT jiwoongpark rearrangedcopolyureanetworksforselectivecarbondioxideadsorptionatroomtemperature
_version_	1718410650780172288

Rearranged Copolyurea Networks for Selective Carbon Dioxide Adsorption at Room Temperature

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